Table 3. Search strategy.

Databases:     -   EBSCO (Academic search complete and Psychinfo)     -   Medline     -   Cinahl     -   Web of Science     -   PubMed     -   Embase     -   Scopus     -   Google Scholar     -   Cochrane Library

Search keywords:

1.   [“behavioural change intervention*” OR “behavioral change intervention*” OR “behaviour change technique*” OR “behavior change technique*” OR “cognitive behavioural therapy” OR “cognitive behavioral therapy” OR psychology OR “psychological therapy” OR “health behaviour*” OR “health behavior*”]

2.   [self-efficacy OR “self efficacy” OR “physical activity self-efficacy ” OR “physical activity self efficacy ” OR “exercise self- efficacy ” OR “exercise self efficacy” OR self-management]

3.   1 AND 2

4.   [ “physical activit *” OR recreation OR sport OR exercise OR training OR fitness OR “physical therap* ” OR rehabilitation]

5.   3 AND 4

6.   [ “Parkinson’s Disease ” OR “Parkinsons Disease” OR “Parkinson Disease” OR Parkinson’s OR Parkinson]

7.   5 AND 6